2007-11-16_REVISION - M1977205 ‎(5)‎

• Permit No: M1977205
• IBM Index Class Name: REVISION
• Doc Date: 11/16/2007
• Doc Name: Preliminary adequacy review
• From: DRMS
• To: Greg Lewicki and Associates
• Type & Sequence: TR2
• Email Name: SSS
• Media Type: D
• Archive: No

STATE 555
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COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203 D COLORADO
DIVIE SION OF
Phone: [phone] RECLAMATION
FAX: [phone]
p?? MINING
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Noy 19 2007 SAFETY
November 16, 2007 Division 01 Reclamation,
and Safety Bill Owens
Governor
Mining
Russell George
Greg Lewieki Executive Director
Greg Lewicki and Associates Ronald W. Cattany
11541 Warrington Court Division Director
Parker, CO 81501 Natural Resource Trustee
Re: Tri-County Gravel, Permit No. M-1977-205, Technical Revision No. 2 Preliminary Adequacy Review
Dear Mr. Lewicki:
On October 18, 2007 the Colorado Division of Reclamation, Mining and Safety (DRMS) received Tri County Gravel's
request for a technical revision to Permit No. M-1977-205 addressing revisions to the mine phasing sequence, the change to
dry mining with 2:1 slopes, the installation of a sediment pond, and the design and construction of a new dike between Phase
1 and the Gunnison River including a new outlet structure for the pit lake. This revision cannot be approved until the
following issues are adequately addressed. Please submit a response to the following issues as soon as possible, but no
later than November 19, 2007 so the decision due date set for November 19, 2007 can be met. If your response or a
written extension request are not received by that date, this application may be denied
ADEOUACY COMMENTS
CA N" :'.<t "':. 1. The revised reclamation plan includes the end of some roads that are cut off by the excavation so they are isolated.
Please revise the reclamation plan, reclamation cost estimate and reclamation maps to either reclaim these sections
of road or re-connect them to permanent road features.
2. The proposed plan separates the old Phase V into two separate wetlands to be preserved. The area between these
two wetlands is proposed to be excavated, leaving an irrigation ditch at the crest of the pit slope. This scenario may
lead to unstable pit slopes in this location and could funnel water away from portions of the wetlands. DRMS
recommends leaving the current Phase V intact in it's entirety as a wildlife area.
3. The operator has committed to supplying water to the Phase V wetlands to maintain them during mining. This is
simple when the operator and the landowner with water rights are one in the same. However, this may be
problematic if the mining permit is transferred to another operator who does not control those water rights. Please
address this issue as necessary.
4. Please revise the proposed mining of the wildlife buffer between current Phase I and Il to leave the entirety of the
wetland located on the northeast end of the 200 foot wide buffer strip.
5. Contours of the final pit slopes on the Reclamation Plan Map are not consistent with the slope grades specified in the
proposed reclamation plan text. Please correct this discrepancy.
6. Please remove the conservation easement notation from the map legends where the easement is not shown on the
maps. The conservation easement issue will be dealt with under another revision to this permit.
Office of Office of
Mined Land Reclamation Active and Inactive Mines